lean-web SKILL.md skillA

lean-web from lean-llm/lean-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add lean-llm/lean-agents/lean-web@git:20261019.da88d4b

Pins git:20261019.da88d4b in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
lean-llm/lean-agents
Path
skills/lean-web/SKILL.md
Versions recorded
2
Latest version
git:20261019.da88d4b, committed Oct 19, 2026
First version recorded
Oct 18, 2026
Size
10,351 bytes
Repository stars
27
License
none declared

Load lean-web when working on web or Node.js projects: JavaScript, TypeScript, HTML/CSS, React, Next.js, Fastify, backend APIs, authentication/OAuth, monorepos, tooling, testing, or web performance. Apply framework-specific rules only when that stack is present.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# lean-web

## Contract
Use `AGENTS.md` for agent roles/delegation; this skill covers web/Node implementation only. Executing agent loads it (ORCHESTRATOR on direct work; CODER on delegated work). Do not add frameworks/tools/features just because listed here. Detect existing stack before deciding. Target: smallest correct patch + relevant proof.

## Detect → locate → fix → verify
Identify `package.json`, lockfile/package manager, Node version, framework, tsconfig, lint/test/build scripts, deployment target; respect existing conventions, runtime/browser support and CI. Use project scripts and local binaries (`npm run ...`, `pnpm ...`, `yarn ...`, `bun ...`) rather than inventing commands. Locate the failure boundary and patch minimally. Don't change generated files, lockfile or dependencies without reason; don't mix package managers. For behavior changes add regression tests covering positive, negative and error cases. Run focused tests/typecheck/lint/build as relevant; report exact exits, not inferred passes. Prioritize correctness, accessibility, security and performance in that order.

## JavaScript / TypeScript
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add lean-llm/lean-agents/lean-web@sha256:c6bceec6022c8390

The line at the top of this page pins the label git:20261019.da88d4b, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_awjzsjbn2d2z4wgw.svg)](https://markdownregistry.com/a/art_awjzsjbn2d2z4wgw)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between Oct 18, 2026 and Oct 19, 2026, about one every 2 days.

versioncommittedcommitsizeaudit
git:20261019.da88d4b latest2026-10-19 da88d4b 10,351 BA view · diff
git:20261018.132f5b92026-10-18 132f5b9 10,413 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (10351 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

lean-llm/lean-agents · 27 stars · license none declared · pushed 2026-11-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_awjzsjbn2d2z4wgw
GET https://markdownregistry.com/api/v1/resolve?ref=lean-llm/lean-agents/lean-web
GET https://markdownregistry.com/api/v1/blob/c6bceec6022c83907668d5e807a4a3bfcf6c5d3d34396088f51c6fee464e0980

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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